pin to 0.18 because 0.19 is broken (#225)

* block 0.18.3, it is broken

* update dep pin to correct version and specify GH Issue that needs resolved to unpin

Author: mshafer-NI

poetry.lock

@@ -36,7 +36,7 @@ isort = ">=5.10"
 # flake8 plugins should be listed here (in alphabetical order)
 flake8-black = ">=0.2.1"
 flake8-docstrings = ">=1.5.0"
-flake8-import-order = ">=0.18.1"
+flake8-import-order = ">=0.18.1,<0.19.0" # we're not compatible with 0.19.0 yet due to #226
 pep8-naming = ">=0.11.1"
 
 # Rejected flake8 plugins should be listed here (in alphabetical order)